Well, I finally got my spare iMach pendant to work with my 1100S3. Editing the base file instead of the 1100S3 file worked. This video helped, and the latest version of the documentation shows this as well now.
https://youtu.be/fsMVSvsRAaY?si=8vb5ZjvWd7_3ZKJ6
Where to put one of the edits is a little unclear, but I got it to work.
There is a lot of other stuff in between HALUI = halui and [TRAJ].HALUI = halui
[HALUI]
MDI_COMMAND=…
MDI_COMMAND=…
MDI_COMMAND=…
MDI_COMMAND=…
MDI_COMMAND=…
MDI_COMMAND=G10 L20 P1 X0
MDI_COMMAND=G10 L20 P1 Y0
MDI_COMMAND=G10 L20 P1 Z0
[TRAJ]
Placed just below the HALUI = halui it choked and just went into a continuous reboot cycle.
Placed just above the [TRAJ] it worked.
I was able to keep the shuttle as well, but even after all these years I still prefer a pendant to the shuttle. I have pendants on ALL my other CNC machines. Once I cure one last problem I'll probably remove the shuttle and toss it in the cabinet next to the computer.
Okay, some will jump on the e-stop not working on the pendant. I don't know if that can be cured or not. I don't care. I made a hook to hang the pendant right next to the hard wired e-stop button anyway.
The problem is when I am fast jogging with the pendant it scoots along fine for a several inches, slows down for a short stretch, and speeds back up again. It seems to do this when spinning the MPG fast or slower. On my other machines I pretty much only use the pendant to jog or step.
I like the documentation for setting step increments. I pretty much only step at 0.0001in so I set all the other increments to zero.